// Copyright (C) 2008 Taylor L. Riche <riche@cs.utexas.edu>
//  
// This program is free software; you can redistribute it and/or modify
// it under the terms of the GNU General Public License as published by
// the Free Software Foundation; either version 2 of the License, or
// (at your option) any later version.
// 
// This program is distributed in the hope that it will be useful,
// but WITHOUT ANY WARRANTY; without even the implied warranty of
// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
// GNU General Public License for more details.
// 
// You should have received a copy of the GNU General Public License
// along with this program; if not, write to the Free Software 
// Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.

#ifndef MEMGROUP_H_
#define MEMGROUP_H_

#include "ProcElement.h"
#include "Operator.h"

#include <assert.h>
#include <map>
#include <list>
#include <math.h>

// so that I don't lose it
#define BUFFER_CONST .5

namespace lagniappe
{
	
class ProcElement;
class Operator;

class MemGroup
{
protected:
	std::list<ProcElement *> freeProcList;
	static const double bufferVal = BUFFER_CONST;
	std::map<Operator *, std::list<ProcElement*> > opToProcMap;
	std::map<ProcElement*, std::list<Operator *> > procToOpMap;
public:
	MemGroup();
	virtual ~MemGroup();
	bool hasFree(bool initial = false);
	ProcElement * getFreeProc(Operator * o);
	void insertProcessor(ProcElement * p);
	void revokeOpProc(Operator * op, ProcElement * p); 
	
};

}

#endif /*MEMGROUP_H_*/
